<p>Anyone else get the question with the stamp collector having 12% foreign stamps which asked how many foreign stamps would he have if another percentage of a certain batch of stamps were added?</p>
<p>@skepticidal: I missed yours, sorry. Stats nerd here w00t I wish I had had this question instead of that ratio that I probably missed ^
P(first day OR second day is Tuesday) = P(first day is Tuesday) + P(second day is Tuesday) = (1/6) + (1/5) = (5/30) + (6/30) = 11/30
Was that an answer? (But thats exp so it doesn’t matter.)</p>
<p>8/24 were not working thus 16 were working</p>
<p>working to not working was the q.</p>
<p>16:8 –> 2:1</p>
<hr>
<p>@neonblue, response to @tuanbinho,
I’m very confused what the question was. I feel like my test said/ or at least what I remember is:</p>
<p>You have point A.
There are four others standing a distance away from point A, one at 20, 70, x, and 270 respective units. If the avg. distance from A is 120 units, how far is x from point A…?
Or did I actually misread the problem?</p>
<p>@neonblue:</p>
<p>That may have been a choice but I don’t think so because I recall </p>
<p>A) 1/6
B)
C) 1/3
D)
E) 5/12 (?)</p>
<p>I also did out 1/6 * 1/5 so 1/30 was not there, and I MIGHT HAVE tried 1/5 + 1/6 just to check if it was there… Did anyone else have this question/and/or remember the answer choices?</p>
<p>Does everyone have the same test? (excluding experimental sections and ignoring the order of the sections)</p>
<p>skepticidial-yeah</p>
<p>10% (cumulative percent employed in april).</p>
<p>For this question, I remember that it said that you had to divide the people employed in April by the total, so wouldn’t you subtract the number for June by April (which was approx. 212 or smth), by the other value (which was like 1000), which made an answer really close to 20%. I might of read the question incorrectly though.</p>
<p>@brolex - I put 4 25 50 100
the other answers had some multiples that didn’t make sense</p>
<p>Maybe I don’t wish I had that problem. My stats skills are getting too rusty… xD
MT MW MH MF MS
TW TH TF TS
WH WF WS
HF HS
FH
= 5/15 = 1/3</p>
<p>I see now. It would be
P(first day is Tuesday)<em>P(second day is not tuesday) + P(first day is not tuesday)</em>P(second day is Tuesday)
= 1/6<em>5/5 + 5/6</em>1/5
= 5/30 + 5/30
=10/30
=1/3
5/5 because if the first day is Tuesday then the second day can’t be Tuesday.
I think that makes sense mathematically speaking, but I probably would have just written out the choices. xD</p>
<p>@skepticidal: You read it as the total distance average was 120, as in (20+70+x+270)/4=120 but that is incorrect.
120 is the average distance between x and each person, not each person and the beginning of the line. The correct equation would be ((x-20)+(x-70)+(270-x))/3=120
which is the problem that I worked.
EDIT: I actually misread what you just wrote lol. Fixed my response ^</p>
<p>@Striynx: The answer is 10%. April cumulative - March cumulative = April only
April only/last month given cumulative(total) = 222/2224 = ~10%
If you didn’t realize they were cumulative and you took the April cumulative/sum of all months cumulative data you get around 20%, which is incorrect.</p>
<p>@neonblue ah… I assumed that cumulative was measured at the beginning of the month for some reason…</p>
<p>what was the question for the 5.5 grid in?</p>
<p>Does anyone have the answer to the question with the international stamps?</p>
<p>It said that 12% of your stamps were international, but then you added 200 stamps into your collection-72 of them being international. After this, 20% of all your stamps are international. how many stamps do you have</p>
<p>I didn’t have the stamps one and I had exp grid in math. Though, I got 10% and 180 and 4 25 …</p>
<p>but do you guys remember an easy MC one that went f(-1) = and the seemingly right choice was 0</p>
<p>what was the harshest SAT math curve ever like?</p>
<p>so we know that one of the grid in sections has to be experimental cuz a lot of ppl have qu others didnt see, so which one of the grid in’s counted? what were some of those questions/ans if you remember? </p>
<p>i think i missed 4 grid ins and 5 m.c. overall… (my calculator stopped working >.<)
how much do you think that is?</p>
<p>question to the grid-in with answer 42 was about the function f(x)= 4.5+1.5x (not sure if the numbers are correct, idr), where x was the given distance, and you had to find the cost of riding the taxi</p>
<p>How many do you think I can get wrong and still get a 720/730? Ugh, so mad at myself.</p>
<p>Can someone please post which grid-in question had 9 as an answer?</p>